It activates a gamma-ray detector that will spot a nuclear blast as much as 100 miles away and instantly shut all the airvents. He had it tested before moving in.

它能使伽马射线嗅探器工作——嗅探100英里外核爆炸并立即关闭所有通风口。

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A powerful X-ray blast drew the attention of astronomers to the event, located near the center of a galaxy about 700 million light-years from Earth.

强烈的X射线爆炸引起天文学家们的注意，它发生在到离地球大约7亿光年的星系中心附近。

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A powerful X-ray blast drew the attention of astronomers to the event, located near the center of a galaxy about 700 million light-years from Earth.

强烈的X射线爆炸引起天文学家们的注重，它发生在到离地球年夜约7亿光年的星系中心四周。

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But for a short-lived event such as a gamma-ray burst it means that the same blast may become visible again in the future.

ECONOMIST: An illuminating burst

If the equivalent of an earthquake were to occur on one (and they are known to occur on pulsars), it would be powerful enough to erupt with a blast of gamma rays thereby solving puzzle number three, the soft gamma-ray repeaters.

ECONOMIST: Pulsars